Hi MartinThanks, you are right, the problem come from the withe list (I have created the API from a Swagger file)But now, I have this error : { "error_description": "The authorization grant type is not supported by the authorization server.", "error": "unsupported_grant_type"}

FYI, we are currently evaluating several API management solutions for deploying our APIs with our partners.We use OAUTH2 with client credentials workflow to authorize access to our APIs.So this feature is really important for us.

Could you give me a sample of an API with the right OAUTH2 configuration ?

And now when I try to retrieve an access token from curl I have this error{"error":"server_error","error_description":"The authorization server encountered an unexpected condition that prevented it from fulfilling the request."}